WHEN TO SOW OUTDOORS

Sow from the end of March to the beginning of May, or when plum and
peach trees bloom, the following:
Beet Cabbage Carrot Cauliflower
Celery Endive Kale Kohlrabi
Lettuce Onions Parsley Parsnip
Peas Radish Spinach Turnip
Water-cress
Sow from the beginning of May to the middle of June, or when apple
trees bloom, the following:
Beans Corn Cucumber Melon, musk
Melon, water Okra Pumpkin Squash
Tomato
Getting the seed to sprout, however, is only the first step in the
game; they must be provided with the means of immediately beginning to
grow. This means that they should not be left to germinate in loosely
packed soil, full of air spaces, ready to dry out at the first
opportunity, and to let the tiny seed roots be shriveled up and die.
The soil should touch the seed--be pressed close about it on all sides,
so that the first tiny tap root will issue immediately into congenial
surroundings where it can instantly take hold. Such conditions can be
found only in a seed-bed fine but light enough to pack, reasonably rich
and sufficiently moist, and where, in addition to this, the seed has
been properly planted.